SPY: Large Volume Trades and Price Impact


Re-Tweet
Share on LinkedIn

S&P 500 is showing signs of institutional buying: Buy Imbalance hits +$1.0 billion

Following the Big Money in S&P 500 Stocks

So far in trading today, the S&P 500 ETF is up 0.7%. SPY stock last traded at $529.86. Large volume bursts in S&P 500 stocks reached 24.9 million shares worth a total of $5.4 billion in transactions. There was notable buy pressure in the Technology and Communication Services sectors. Overall, buy volume pressure exceeded sell volume pressure by a 1.5 to 1 ratio. There were 112 stocks that had more buy pressure on balance, and 104 stocks that had more sell pressure from large institutions. As a whole, there was a net positive +$1.0 billion in dollar volume trades. A greater amount of the trading volume occurred on lit exchanges, at 56.4%, compared with 43.6% being transacted in the dark pool. To learn more about large volume trades, check out our help section.

Daily Chart: Large Volume Bursts Over Time

As you can see from the chart below, the most recent cumulative buy imbalance of +$1.0 billion occurred at 2:15 PM. This also represented the peak buy imbalance for the day. The lowest cumulative sell imbalance occurred at 10:00 AM, when the net sell reached -$229.2 million. The largest spike in imbalance came between 10:00 AM and 10:15 AM when the buy pressure outweighed the sell pressure by a 9.0 to 1 ratio.

Flow by Sector

Technology had the highest amount of dollar volume bursts of all the SPDR sectors, with buy dollar volume exceeding sell dollar volume by $768.2 million. 19 of the Technology stocks had positive dollar balance, versus 17 that were net negative.

Individual Stocks

NVDA stock had the single biggest volume burst activity of all the S&P 500 stocks. Buy volume bursts exceeded sell volume by 528,249 shares. As of this afternoon, the average purchase price on buy volume was $1046.44. The stock price increased $15.70, indicating strength following the trade.